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Side-by-side financial comparison of CONSTELLIUM SE (CSTM) and ILLUMINA, INC. (ILMN). Click either name above to swap in a different company.

CONSTELLIUM SE is the larger business by last-quarter revenue ($2.2B vs $1.2B, roughly 1.9× ILLUMINA, INC.). ILLUMINA, INC. runs the higher net margin — 28.8% vs 5.1%, a 23.7% gap on every dollar of revenue. ILLUMINA, INC. produced more free cash flow last quarter ($267.0M vs $109.0M).

Constellium SE is an American-Swiss, French-based global manufacturer of aluminium rolled products, extruded products, and structural parts based on a large variety of advanced alloys. Constellium's C-TEC research center has been credited for advancing technology in the field of advanced aluminium alloy. Constellium primarily serves the aerospace, automotive, and packaging sectors. Large clients include Mercedes-Benz, Audi, BMW, Fiat Chrysler Automotive, Ford, Airbus, Boeing, and Bombardier.

Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of products and services that serves the sequencing, genotyping and gene expression, and proteomics markets, and serves more than 155 countries.

CSTM vs ILMN — Head-to-Head

Bigger by revenue
CSTM
CSTM
1.9× larger
CSTM
$2.2B
$1.2B
ILMN
Higher net margin
ILMN
ILMN
23.7% more per $
ILMN
28.8%
5.1%
CSTM
More free cash flow
ILMN
ILMN
$158.0M more FCF
ILMN
$267.0M
$109.0M
CSTM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CSTM
CSTM
ILMN
ILMN
Revenue
$2.2B
$1.2B
Net Profit
$112.0M
$334.0M
Gross Margin
65.5%
Operating Margin
7.5%
17.4%
Net Margin
5.1%
28.8%
Revenue YoY
5.0%
Net Profit YoY
185.5%
EPS (diluted)
$0.79
$2.16

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CSTM
CSTM
ILMN
ILMN
Q4 25
$2.2B
$1.2B
Q3 25
$2.2B
Q2 25
$2.1B
Q1 25
$2.0B
Q4 24
$1.1B
Q3 24
$1.1B
Q2 24
$1.9B
$1.1B
Q1 24
$1.1B
Net Profit
CSTM
CSTM
ILMN
ILMN
Q4 25
$112.0M
$334.0M
Q3 25
$88.0M
Q2 25
$36.0M
Q1 25
$37.0M
Q4 24
$186.0M
Q3 24
$705.0M
Q2 24
$76.0M
$-2.0B
Q1 24
$-126.0M
Gross Margin
CSTM
CSTM
ILMN
ILMN
Q4 25
65.5%
Q3 25
Q2 25
Q1 25
Q4 24
65.9%
Q3 24
69.0%
Q2 24
64.8%
Q1 24
62.0%
Operating Margin
CSTM
CSTM
ILMN
ILMN
Q4 25
7.5%
17.4%
Q3 25
5.8%
Q2 25
2.7%
Q1 25
3.1%
Q4 24
15.8%
Q3 24
68.6%
Q2 24
5.4%
-147.2%
Q1 24
-10.3%
Net Margin
CSTM
CSTM
ILMN
ILMN
Q4 25
5.1%
28.8%
Q3 25
4.1%
Q2 25
1.7%
Q1 25
1.9%
Q4 24
16.8%
Q3 24
65.3%
Q2 24
3.9%
-178.8%
Q1 24
-11.7%
EPS (diluted)
CSTM
CSTM
ILMN
ILMN
Q4 25
$0.79
$2.16
Q3 25
$0.62
Q2 25
$0.25
Q1 25
$0.26
Q4 24
$1.16
Q3 24
$4.42
Q2 24
$0.51
$-12.48
Q1 24
$-0.79

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CSTM
CSTM
ILMN
ILMN
Cash + ST InvestmentsLiquidity on hand
$120.0M
$1.6B
Total DebtLower is stronger
$1.9B
Stockholders' EquityBook value
$952.0M
$2.7B
Total Assets
$5.4B
$6.6B
Debt / EquityLower = less leverage
2.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSTM
CSTM
ILMN
ILMN
Q4 25
$120.0M
$1.6B
Q3 25
$122.0M
Q2 25
$133.0M
Q1 25
$118.0M
Q4 24
$93.0M
Q3 24
$70.0M
Q2 24
$74.0M
Q1 24
Total Debt
CSTM
CSTM
ILMN
ILMN
Q4 25
$1.9B
Q3 25
$2.0B
Q2 25
$2.0B
Q1 25
$1.9B
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
CSTM
CSTM
ILMN
ILMN
Q4 25
$952.0M
$2.7B
Q3 25
$845.0M
Q2 25
$780.0M
Q1 25
$745.0M
Q4 24
$2.4B
Q3 24
$2.1B
Q2 24
$796.0M
$1.4B
Q1 24
$5.7B
Total Assets
CSTM
CSTM
ILMN
ILMN
Q4 25
$5.4B
$6.6B
Q3 25
$5.4B
Q2 25
$5.4B
Q1 25
$5.2B
Q4 24
$6.3B
Q3 24
$6.0B
Q2 24
$6.1B
Q1 24
$10.0B
Debt / Equity
CSTM
CSTM
ILMN
ILMN
Q4 25
2.00×
Q3 25
2.34×
Q2 25
2.53×
Q1 25
2.56×
Q4 24
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CSTM
CSTM
ILMN
ILMN
Operating Cash FlowLast quarter
$218.0M
$321.0M
Free Cash FlowOCF − Capex
$109.0M
$267.0M
FCF MarginFCF / Revenue
5.0%
23.0%
Capex IntensityCapex / Revenue
5.0%
Cash ConversionOCF / Net Profit
1.95×
0.96×
TTM Free Cash FlowTrailing 4 quarters
$159.0M
$935.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSTM
CSTM
ILMN
ILMN
Q4 25
$218.0M
$321.0M
Q3 25
$99.0M
Q2 25
$114.0M
Q1 25
$58.0M
Q4 24
$364.0M
Q3 24
$316.0M
Q2 24
$138.0M
$80.0M
Q1 24
$77.0M
Free Cash Flow
CSTM
CSTM
ILMN
ILMN
Q4 25
$109.0M
$267.0M
Q3 25
$24.0M
Q2 25
$37.0M
Q1 25
$-11.0M
Q4 24
$335.0M
Q3 24
$284.0M
Q2 24
$54.0M
$49.0M
Q1 24
$41.0M
FCF Margin
CSTM
CSTM
ILMN
ILMN
Q4 25
5.0%
23.0%
Q3 25
1.1%
Q2 25
1.8%
Q1 25
-0.6%
Q4 24
30.3%
Q3 24
26.3%
Q2 24
2.8%
4.4%
Q1 24
3.8%
Capex Intensity
CSTM
CSTM
ILMN
ILMN
Q4 25
5.0%
Q3 25
3.5%
Q2 25
3.7%
Q1 25
3.5%
Q4 24
2.6%
Q3 24
3.0%
Q2 24
4.3%
2.8%
Q1 24
3.3%
Cash Conversion
CSTM
CSTM
ILMN
ILMN
Q4 25
1.95×
0.96×
Q3 25
1.13×
Q2 25
3.17×
Q1 25
1.57×
Q4 24
1.96×
Q3 24
0.45×
Q2 24
1.82×
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CSTM
CSTM

Packaging Rolled Products$1.0B46%
Automotive Rolled Products$318.0M14%
Aerospace Rolled Products$270.0M12%
Transportation Industry Defense And Other Rolled Products$232.0M11%
Automotive Extruded Products$220.0M10%
Other Extruded Products$132.0M6%
Specialty And Other Thin Rolled Products$22.0M1%

ILMN
ILMN

Product revenue$990.0M85%
Service and other revenue$169.0M15%

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